Available online at www.sciencedirect.comEnergyProcediaEnergy(2009)EnergyProcediaProcedia100(2008)37953799000000www.elsevier.com/locate/procediawww.elsevier.com/locate/XXXGHGT-9GHG Profiles for Distillate Fuels Produced from ConventionalPetroleum, Oil Sands, Shale Oil and XtLJohn J. Marano*JM Energy Consulting, 1065 South Lake Dr., Gibsonia, PA, USA, 15044Elsevier use only: Received date here; revised date here; accepted date hereAbstractThe potential impacts of climate change, recent world events, and a dramatic rise in oil prices have resulted inrenewed interest in alternative transportation fuels. When considering the many options, tradeoffs exist betweenenvironmental, energy security and economic concerns. A portfolio of multiple alternatives that balances theseconcerns may turn out to be the most prudent. In particular, the coupling of conventional and non-conventionalfossil resources with carbon sequestration and renewable biomass may mitigate greenhouse gas (GHG) emissionsfrom fossil carbon-intensive resources, while providing economic and security benefits. To achieve this result, it isvery desirable that all resources employed produce fungible fuel blending components, so that single, specificationfuels can be easily supplied. As a first step in examining the alternatives, it is necessary to establish baseline lifecycle greenhouse-gas emissions profiles for current and future alternative-transportation fuel supply-chains. JMEnerg